When it comes to the relationship between space technology and our daily life, people first think about satellite television and weather forecasting. In fact, space technology involves a wide range of applications, most of which are closely related to our daily life and can benefit the community. Recently, 706 Aerospace Science and Industry Corporation launched the NBF equipment, but also contributed to building a green building. With the improvement of living standards, people are increasingly concerned about the ecological environment. Everyone is anxious to live and work in a green environment. And most of the time people spend in buildings. Green buildings become our goal. So what is a green building? It has the following three characteristics, first, to save energy, mainly to save energy; second, there should be no pollution, including chemical pollution and electromagnetic pollution; third, to be safe, fire is The most important security risks. NBF is a green power device developed to achieve these three goals. I. Lurking crisis in modern buildings A characteristic of modern buildings is the large concentration of electronic equipment, including office equipment, lighting equipment, commercial billboards, LED screens and other equipment. These devices will produce serious electricity pollution and electromagnetic pollution. Everybody is familiar with air pollution and water pollution, but also unfamiliar with electric power pollution and electromagnetic pollution. Electricity pollution is the electricity on the grid has been polluted, power pollution will endanger the safety of electronic equipment and buildings. Electromagnetic pollution is the electromagnetic environment around us pollution. Electromagnetic environment and human health are closely related to the deterioration of the electromagnetic environment will endanger human health. Therefore, while enjoying the efficiency and convenience brought by the electronic devices, we also have unsafe risks. It's like a car bringing convenience to us and creating the same air pollution. Then the electronic equipment is the result of power pollution and electromagnetic environment pollution? This is because the electronic equipment will produce harmonic current work. "Harmonic current, as the car will produce tail gas . Harmonic currents flowing on electrical lines can cause a lot of hazards, with three of the greatest hazards, the first of which is a fire hazard since the harmonic currents flow over the line, causing the line to overheat. The second is to generate more Strong electromagnetic fields cause the electromagnetic environment to deteriorate due to the higher frequency of the harmonic currents and the higher susceptibility to electromagnetic radiation. The third is energy wasted and the harmonic currents generate additional heat, which consumes energy. Harmonic current is the inevitable result of electronic equipment. Due to the rapid progress of our country's modernization, people's understanding of the harm of harmonic current is still very limited, but the harm caused by harmonic current is very extensive. Therefore, we must popularize relevant knowledge as soon as possible to avoid the harm of harmonic current. What is NBF NBF Chinese name is "zero line harmonic current" title = "harmonic current news feature"> harmonic current blocker. "Function is to eliminate the harmonic current generated by electronic devices, so as to solve the harmonic current Kind of problem This equipment from the 90s of last century in Europe and the United States widely used. The main reason is that 90 years, Europe and the United States began a large number of popular information equipment, energy-saving equipment, which caused serious pollution of the power grid and the electromagnetic environment, one of the most serious consequence is that electrical fires occur frequently. People through in-depth analysis, finally found the culprit leading to these problems is the harmonic current! So people began to make in-depth study on how to eliminate the harmonic current, put forward many ways, NBF is a cost-effective solution. How does NBF eliminate the fire hazard caused by harmonic current? Traditional electrical theory that, when the three-phase zero-neutral current balance. Probably come from the term "zero line". Therefore, the traditional electrical construction, will reduce the cross-sectional area of ​​the zero line. But when the electrical load is mainly modern electronic devices, this theory has been completely subverted. When the load is electronic equipment, "Even if the three-phase load balance, the zero line current is not zero, but will reach the phase current of 2 times." This conclusion is very alarming. Because there is too much current on the zero line will lead to zero-wire conductor overheating. From the basic physical knowledge, we know that when the current on the conductor reaches twice the original current, the heat of the conductor is 4 times the original! The consequences can be imagined, which is a serious fire hazard. You might think that we are not installing a lot of safety devices on the line, why when the current on the line exceeds the rated value, these safety devices will not automatically cut off the line, thus avoiding the fire? This is because the electrical installation code stipulates that overcurrent protection can only be installed on the phase line (FireWire), the zero line can not be secured. Therefore, when the current on the zero line is too large, there is no protection device action, only let the heat. This is a huge fire hazard that can trigger a fire when conditions of combustion are available. The NBF is able to solve the zero line current overheating problem equipment. Four. NBF is how to improve the electromagnetic environment Harmonic Current "Harmonic current due to high frequency, and more prone to electromagnetic radiation due to distribution lines are widely distributed in buildings, so the electromagnetic environment in buildings will be due to harmonic The existence of wave current has become very poor. Many experts have studied the relationship between the deterioration of the electromagnetic environment and the human body. Studies have shown that: in the low-frequency magnetic field where the harmonic current is generated for a long time, some uncomfortable phenomena occur in the human body, such as common sub-health states, including sleepiness, Fatigue, insomnia, muscle soreness, emotional instability and other symptoms. The World Health Organization has now classified low-frequency electromagnetic fields as a group of carcinogens along with styrene and welding fumes. The WHO International Agency for Research on Cancer and the WHO Task Force have assessed that low-frequency magnetic fields are also associated with childhood leukemia and brain cancer, with a 2-fold increase in the prevalence of childhood leukemia at field exposures above 0.3 μT. NBF reduces the harmonic currents in the line, thus improving the electromagnetic environment and improving human health. How does NBF save energy?